1 files changed, 23 insertions, 0 deletions
diff --git a/testing/web-platform/tests/xhr/event-readystate-sync-open.any.js b/testing/web-platform/tests/xhr/event-readystate-sync-open.any.js
new file mode 100644
index 0000000000..a8a4fe7f9a
--- /dev/null
+++ b/testing/web-platform/tests/xhr/event-readystate-sync-open.any.js
@@ -0,0 +1,23 @@
+// META: title=XMLHttpRequest: open() call fires sync readystate event
+
+const title = "XMLHttpRequest: open() call fires sync readystate event";
+
+test(function () {
+  var client = new XMLHttpRequest()
+  var eventsFired = []
+  client.onreadystatechange = function () {
+    eventsFired.push(client.readyState)
+  }
+  client.open('GET', "...", false)
+  assert_array_equals(eventsFired, [1])
+}, title + ' (sync)');
+
+test(function () {
+  var client = new XMLHttpRequest()
+  var eventsFired = []
+  client.onreadystatechange = function () {
+    eventsFired.push(client.readyState)
+  }
+  client.open('GET', "...", true)
+  assert_array_equals(eventsFired, [1])
+}, title + ' (async)');